Match each Google Cloud networking concept to its description.
Drag a concept onto its matching description — or click a concept then click the description.
Virtual Private Cloud – isolated network
Content delivery network for low-latency delivery
Distributes traffic across instances
Outbound internet for private instances
Dedicated connection between on-prem and GCP
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
VPC: Virtual network environment in Google Cloud.
The correct matches are: VPC - virtual network, Cloud Load Balancing - traffic distribution, Cloud CDN - content caching, Cloud Interconnect - dedicated physical connection. Common confusions include mixing Cloud CDN with Load Balancing and Cloud Interconnect with Cloud VPN.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
VPC: Virtual network environment in Google Cloud.
Why this is correct
A VPC is a global, software-defined network that provides logically isolated private IP space, subnets, and routing to Google Cloud resources. It spans regions without needing peering for global communication and integrates native firewall rules and VPC flow logs. This foundation supports Compute Engine VMs, GKE clusters, and serverless services.
Cloud Load Balancing: Distributes traffic across multiple instances.
Why this is correct
Cloud Load Balancing is a fully managed service that distributes incoming user traffic across backend instances or endpoint groups using health checks, capacity balancing, and anycast IP addresses. It operates at Layer 4 or Layer 7, supporting HTTP(S), TCP/SSL, UDP, and QUIC protocols. Its global nature ensures requests are routed to the nearest healthy instance, maximizing availability and autoscaling efficiency.
Cloud CDN: Caches content at edge locations.
Why this is correct
Cloud CDN uses Google's billions-person global edge network to cache content — including static objects and dynamically generated responses with explicit cache directives — closer to users. It works with Cloud Load Balancing and external backends, reducing latency and origin server load. Features like signed URLs, cache invalidation, and request coalescing make it suitable for media streaming and software downloads.
Cloud Interconnect: Dedicated physical connection to Google Cloud.
Why this is correct
Cloud Interconnect is a dedicated, physical network connection that links your on-premises data center directly to Google Cloud through co-location facilities. It offers two service levels: Dedicated Interconnect (for high-bandwidth port capacity) and Partner Interconnect (via a supported service provider for lower bandwidth needs). This private connection provides lower latency, higher reliability, and consistent bandwidth compared to internet-based VPNs, and it is covered by Google’s enterprise SLAs.
Cloud CDN: Distributes incoming traffic across instances.
Why it's wrong here
This option incorrectly conflates Cloud CDN with Cloud Load Balancing. Cloud CDN's core function is caching — storing copies of content at edge locations to serve users quickly — not distributing incoming traffic across instances. In fact, Cloud CDN works in conjunction with Cloud Load Balancing, which performs the routing and health checks; caching alone cannot balance traffic or handle autoscaling.
Cloud Interconnect: Virtual private network over the internet.
Why it's wrong here
This option incorrectly describes Cloud VPN, not Cloud Interconnect. Cloud VPN creates an encrypted IPSec tunnel over the public internet, whereas Cloud Interconnect provides a direct, physical, private link into Google's network. As a result, Interconnect offers lower latency and higher throughput than a VPN, but it requires co-location or a partner provider and incurs additional costs.
Go deeper
Learn chapter
Cloud Digital Transformation
Key term
VPC
A Virtual Private Cloud (VPC) is a logically isolated section of a cloud provider's network where you can launch and manage resources like servers and databases with complete control over IP addressing, subnets, route tables, and security.
Key term
Cloud Interconnect
Cloud Interconnect is a service that provides a dedicated, private, high-bandwidth connection between your on-premises network and a cloud provider's network, bypassing the public internet for improved reliability, security, and performance.
About these practice questions
This GCDL question is part of Courseiva's 829-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This GCDL practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the GCDL exam.